PCS 211 Lecture Notes - Lecture 11: Emor, Repeatability, Nules
1 Dec 2015
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Document Summary
To learn how to estimate the uncertainties in direct and indirect measurements. In this lab you will determine the volume, mass and density of homogenous and regular shaped solids as well as the uncertainties associated with those measurements. Whenever taking a measurement one should be aware that there are two main types of errors associated with the result. They do not refer to any mistakes you may make while taking the measurements. Rather they refer to the errors inherent to the instrument and to your own ability to obtain a precise measurement. One of the errors is the so-called reading error caused by the limitations associated with the reading of the scale and the need to interpolate between scale markings. For example, consider the millimeter (mm) markings on a ruler scale. For a person with a normal vision it is reasonable to say that the length could be read to the nearest millimeter at best.
